Sierra Wireless GM47 Service Manual Page 171
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LZT 123 7263 R1C
7. Data - HSCSD
7.1 AT+CHSC HSCSD Current Call Parameters
Returns information about the current HSCSD call parameters, i.e. the
current number of receive and transmit timeslots, air interface user rate
and channel coding.
Description Command Possible Responses
Show the current
setting
AT+CHSC • +CHSC:<rx>,<tx>,<aiur>,<coding>
• +CME ERROR: <err>
•OK
•ERROR
Show if the
command is
supported
AT+CHSC=? • +CME ERROR: <err>
•OK
•ERROR
<rx> Description
0 No HSCSD call is active. See also note below
1 The number of receive timeslots currently in use is 1
2 The number of receive timeslots currently in use is 2
<tx> Description
0 No HSCSD call is active. See also note below
1 The number of transmit timeslots currently in use is 1
<aiur> Description
0 No HSCSD call is active. See also note below.
1 Current air interface user rate is 9.6kbits/s
3 Current air interface user rate is 19.2kbits/s
<coding> Description
0 No HSCSD call is active. See also note
4 Current channel coding is 9.6kbits/s (TCH/F9.6)
8 Current channel coding is 14.4kbits/s (TCH/F14.4)
- GM47/GM48 1
- First edition (April 2002) 2
- Second edition (August 2002) 2
- Third edition (January 2003) 2
- Contents 3
- GM47/GM48 INTEGRATOR’S MANUAL 10
- Part 1: Overview 11
- 1. Introduction 13
- Part 4 - Using AT Commands 14
- 2. GM47/GM48 Modules 15
- 2.3 Features 17
- 2.3.2 Short Message Service 18
- 2.3.3 Voice Calls 18
- 2.3.4 Data 18
- 2.4 Service and Support 19
- 2.5 Precautions 20
- 3. Abbreviations 21
- Part 2: Developer’s Kit 23
- 1. INTRODUCTION 27
- 2. Using the Developer’s Kit 29
- 2.1 Start up Check List 30
- 2.2 Developer’s Board Overlay 31
- JP21 JP18 32
- Part 3: Integrating the 37
- Antenna connector 39
- System connector 39
- 1.2 Physical Dimensions 40
- 2. System Connector Interface 41
- 2.3 Grounds 45
- 2.5.2 VIO - 2.75V Supply 47
- 2.6 Analogue Audio 48
- 2.6.3 Microphone Signals 50
- 2.6.4 Speaker Signals 51
- 2.7 PCM Digital Audio 52
- 16 bit data word 53
- 13 bit PCM= D13 D0 53
- PCM Timing Diagrams 54
- 2.8 Serial Data Interfaces 55
- Serial Data From Module (RD) 56
- Serial Data To Module (TD) 56
- Ω to VCC 57
- 2.9 SIM Card Related Signals 59
- 2.10 Service/Programming 61
- 2.11 Buzzer 61
- 2.12 LED 61
- 2.15 External I 65
- C Serial Control Bus 65
- 2.17 Real Time Clock 66
- Figure 2.10 RTC connections 67
- 3. Antenna Connector 68
- 4.1.1 General 69
- 4.1.2 SIM Card 69
- 4.1.3 Antenna 70
- Environmental Conditions 70
- Ω for the ground connection 72
- 4.3.2 Antenna Type 73
- 4.3.3 Antenna Placement 73
- 4.3.4 The Antenna Cable 73
- 5. Technical Data 75
- Environmental specifications 76
- Data Storage 76
- 6. Declaration of Conformity 77
- 7. FCC Certificate 78
- Part 4: Using AT Commands 79
- 1.1 Overview 81
- 1.2 Syntax Description 81
- 1.2.2 AT Command Syntax 82
- Basic Syntax Command 82
- 1.2.3 AT Response Syntax 84
- Final Result Code 84
- 1.3 Error Codes 85
- 1.5 SMS Text Mode 87
- Notification of SMS 88
- Reading messages 88
- Listing messages 88
- 1.6 GPRS Communication 89
- 2. Call Control 91
- 2.3 ATD Dial 92
- 2.4 ATH Hang up 94
- 2.7 ATP Select Pulse Dialling 95
- 2.8 ATT Select Tone Dialling 95
- 2.10 AT+CHUP Hang up Call 96
- 2.11 AT+CMOD Call Mode 97
- 2.12 AT+CVHU Voice Hang-Up 98
- 3. Control and Status 101
- LZT 123 7263 R1C 102
- Unsolicited result codes: 107
- [<number>,<type>] 107
- AT*ECAM? 108
- *ECAM: 0 108
- AT*ECAM=1 108
- 3.16 AT+CALA Set Alarm 111
- 3.17 AT+CALD Alarm Delete 112
- 3.26 AT+CPIN PIN Control 120
- AT+CPIN=“0000” 121
- 3.27 AT+CPWD Change Password 122
- AT+CPWD=“SC”,“0000”,“0001” 123
- 3.30 AT+CSAS Save Settings 125
- 3.31 AT+CSQ Signal Strength 126
- 4. Audio 129
- DSPCODEC 130
- Examples 134
- 5. Data - CSD/HSCSD 153
- AT+CRLP? 156
- +CRLP: 61,61,48,6,0 156
- +CRLP: 120,120,48,6,2,3 156
- 6. Data - GPRS 157
- 7. Data - HSCSD 171
- 8. GPS Interoperability 177
- 8. GPS INTEROPERABILITY 179
- 9.2 Low Level Fax Commands 182
- 10. Identification 183
- 10. IDENTIFICATION 189
- 11. Input/Output 191
- Unsolicited Result Codes: 194
- Reading an I/O: 194
- Writing in an Output: 194
- Configuring an I/O: 195
- Checking an I/O status: 195
- Triggering an Input: 196
- Checking an Input Trigger: 196
- 12. Interface 197
- 12.5 AT+WS46 Mode Selection 198
- 12.6 ATE Command Echo 198
- 12.7 ATV DCE Response Format 199
- 13. Network 209
- EXAMPLES 221
- 13.11 AT+CLCK Facility Lock 223
- 14. Phonebook 235
- <gindex> 239
- 14.11 AT+CPBF Phonebook Find 243
- 14.12 AT+CPBR Phonebook Read 243
- AT+CPBR=1,99 244
- 14.13 AT+CPBS Phone Storage 245
- 14.14 AT+CPBW Phonebook Write 246
- 15.1 AT+CPIN PIN Control 251
- 15.5 AT+CMGF Message Format 254
- PDU Mode 255
- Text Mode 256
- 15.7 AT+CMGS Send Message 257
- PDU mode 260
- 15.9 AT+CMGC Send Command 262
- Unsolicited Result codes: 265
- 15.11 AT+CMGR Read Message 268
- 15.12 AT+CMGL List Message 274
- 15.13 AT+CMGD Delete Message 280
- Only Applicable to Text Mode 281
- AT+CSCB? 287
- +CSCB: 0,“50” 287
- 17. SIM Application Toolkit 289
- 17.11 *E2STKP STK Send SS 303
- 17.12 *E2STKU STK Send USSD 304
- 17.13 *E2STKR STK Refresh 305
- Unsolicited result code: 306
- *E2STKTO: <command> 306
- 18. Supplementary Services 307
- 18.4 AT+CAOC Advice of Charge 309
- 18.12 AT+CCWA Call Waiting 321
- Example 1 331
- AT+CUSD=1,“*#100#” 332
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